So yes, bug 757104 is a good idea, setting a different bg color on the gdk window frame changes the color seen during resize, so the black seen comes from the gdk_window background color, before it's eventually repainted by the compositor.
(and nope, using a alpha channel of 0.0 in the bg color doesn't avoid the issue)
So yes, bug 757104 is a good idea, setting a different bg color on the gdk window frame changes the color seen during resize, so the black seen comes from the gdk_window background color, before it's eventually repainted by the compositor.
(and nope, using a alpha channel of 0.0 in the bg color doesn't avoid the issue)